baber/WOPTO huggingface dataset:
Patent GB-1212558-A (GB)
Title: Process for the production of polyvinylcycloalkanes
Inventor: AMERIK VALENTINA VASILIEVNA
IPC: C08F32/00
Filed: 1968-07-15
Abstract: 1,212,558. Polyvinylcycloalkanes. INSTITUT NEFTEKHIMICHESKOGO SINTEZA IM.. A. V. TOPCHIEVA. 15 July, 1968 [17 July, 1967], No. 33645/68. Heading C3P. Polyvinylcycloalkanes, e.g. polyvinylcyclohexane, are made by polymerizing a vinylcycloalkane in propane as solvent and using as catalyst a mixture of a salt of a transition metal of Groups IV-VIII of the Mendeleef's modern Periodic System and an organic compound of a metal of Groups I-III, under a pressure not lower than 5 atmospheres. The exemplified catalyst is a mixture of Al(i-C 4 H 9 ) 3  and TiCl 4  Polymerization may be stopped by addition of isopropyl alcohol.
Patent GB-508649-A (GB)
Title: Improvements in or relating to the fitting of locks or latches to doors
IPC: E05B9/08
Filed: 1938-11-19
Abstract: 508,649. Attaching latches and locks. ASH, J., ROGERS, A., and ROGERS, A. L. Nov. 19, 1938, No. 33674. [Class 44] A flanged sleeve 7 is frictionally held on the cylindrical projection 3 of a latch or lock so that its flange 8 covers any inaccuracy in the boring of the hole 4. The sleeve has slits 9 to impart the required resiliency. The sleeve may also have tongues pressed out and inclined towards the flanged end so as to engage the wall of the hole and resist withdrawal of the sleeve. The flange 8 may have a lateral extension forming a keyhole escutcheon.
Patent GB-792517-A (GB)
Title: Apparatus for making reinforced paper
IPC: D21H25/00
Filed: 1955-11-24
Abstract: 792,517. Production of reinforced paper &c. CARLSON, A. E. Nov. 24,1955, No. 33727/55, Class 96. In the production of reinforced paper &c., bundles of filaments which may be of rayon, nylon or glass and may be untwisted, or thin yarns, or threads are supplied with adhesive, fed to paper 10 and spread or flattened as by a blade or applicator, e.g. so that they form a thin ribbon. Paper strips 70 from spools &c. 60 to which adhesive &c. may be applied at spray booths 100, or which may be coated with heat-activated adhesive or pressure-sensitive adhesive may be fed to the paper 10 so that they are interspersed between the spread bundles of filaments. The spools &c. 60 are supported from a gear-ring 40 rotated by an electric motor 50 and reduction gearing 52, 54, and the strips 70 are fed through guides 72 mounted on a double.chain driven at the same r.p.m. as the gear-ring but their guide-track 93 is elliptical so that the strips are drawn from the spools &c. 60 at a substantially constant rate. If a solvent, e.g. water or isopropanol is applied at 100, it is stored in reservoirs 120, fed through conduits 130 and forced into spray form by compressors 122 on the gear-ring 40. The reinforced paper may be laminated to a cover-sheet. The mandrel 30 over which the webs of paper 10 are drawn may be heated by electrical elements 135. In a modification, the mandrel 30 may be approximately hexagonal to accommodate six webs of paper, instead of two as illustrated. Longitudinal reinforcement may be provided as well as transverse, or the reinforcement may be diagonal.
Patent GB-295536-A (GB)
Title: Improvements in screw cutting tools
IPC: B23G5/08
Filed: 1927-12-13
Abstract: 295,536. Jung, F. Dec. 13, 1927. Screwing die-heads. - In a screw-cutting die-head the stock a is provided with radial openings for the dies b and the latter are substantially in the form of a right-angled triangle of which one perpendicular side b<1> carries the cutting edges, the other perpendicular side b<2> is acted upon by a closing member d and the hypotenuse b<3> coacts with a bevelled surface on the stock. The member d screws upon the stock for closing the dies against the pressure of springs c &c. and carries radial work-guides f having projections g engaging a cam-ring h retained in position on the closing member by a split ring k. Conically-shaped openings l in the stock adjacent the dies ensure. that the cuttings take a spiral form and facilitate their removal. The cutting edges of the dies are concave to reduce friction and the dies may be threaded on a single spring lying in an annular groove in the stock and having hooked ends engaging recesses in the stock.
Patent GB-972599-A (GB)
Title: Apparatus for purification of gases
IPC: B03C3/10
Filed: 1963-08-27
Abstract: 972,599. Electrostatic gas purifiers; travelling- band gas filters. K. E. MERCKLE. Aug. 27, 1963 [Aug. 29, 1962], No. 33814/63. Headings BIT and B2J. Apparatus for purifying gases, such as exhaust gases of industrial plants, comprises one or more filters 6, 7 which move transversely to the gas stream and pass electrostatically charged, gas-permeable members 2, 3, 4, 5 so as to be electrostatically charged by them. The filters, of textile, glass or synthetic fibre material formed into endless belts 6, 7, are driven by motors 32, 33 so that they pass through a filter chamber 1 where they touch or pass closely to electrostatically charged plate-like members 2, 3, 4, 5 of metal, or non- metallic material having a metallized surface or containing metallic parts. The filters also pass into cleansing chambers 8, 9 where they are subjected to neutralizing apparatus 14, 15, 16, 17 before being stripped of dust particles by brushing, washing or suction heads 18, 19, 20, 21 as shown ; the action of the suction heads may be supplemented or replaced by air or steam blowing arrangements. When two or more filter belts are employed these may be made of different materials. The belts may be tensioned by adjusting rollers 12, 13 and the speed of each belt automatically regulated depending on the flow resistance sensed by manometers 30, 31. Ozone or ultra-violet radiation producers 34, 35 may also be provided for the oxidation of certain poison-gases or the destruction of micro-organisms and it is also possible to incorporate radioactive preparations. Instead of the neutralizing apparatus, an attachment to effect scraping of the filter surface may be employed. In a modification, each filter belt is directed by guide rollers so as to slide along opposite surfaces of a single electrostatically charged member.
Patent GB-1118155-A (GB)
Title: Process for treating an earthen formation adjacent an oil well
IPC: C09K8/62
Filed: 1965-08-09
Abstract: An aqueous fluid having dispersed therein a mixture of finely divided particles of an oil soluble resin and a water soluble gum which is a natural gum, a cellulose derivative or a polymer which is polyacrylamide, salts of polyacrylic acid, polyethylene glycol, methyl vinyl ethermaleic anhydride copolymer or a urethane-polyethylene glycol copolymer is used to treat an earthen formation adjacent an oil well.  The fluid may comprise hydrochloric acid, a styrene-(or a -methyl styrene) -vinyl toluene copolymer or a modified petroleum resin and karaya gum.
Patent GB-468925-A (GB)
Title: Improvements in ink vessels for filling fountain pens
IPC: B43L25/00
Filed: 1936-12-10
Abstract: 468,925. Ink receptacles. MELO, A. S. A. DE. Dec. 10, 1936, No. 33984. Convention date, Sept. 2. [Class 146 (iii)] In an ink vessel for use in filling fountain pens, of the kind having a float in the ink provided with a recess or cavity in which the level of the ink remains constant, the float 3 extends over substantially the entire crosssectional area of the ink vessel 1, the shape of the under surface of the float conforms to that of the bottom of the vessel, and the cavity 7 in the float is in communication with the ink in the vessel through a hole 10<1> in the bottom of the float. The top 2 is screwed on the vessel, has four inner projections 6 in the neck 4 to guide the pen, and is screw-threaded to receive a cap. The float 3 is a hollow cylindrical body, the cavity 7 has lugs 11 at the top to support the foot of the pen, and the total depth of the cavity is slightly greater than the distance which the nib projects from the foot of the pen. The upper space in the vessel communicates with the lower by means of four semicircular grooves 10 in the vessel walls ; as an alternative, the float may be grooved. The float is sufficiently buoyant to support a fountain pen.
Patent GB-978117-A (GB)
Title: Soaking pit burner or the like
IPC: F23D14/00
Filed: 1962-09-06
Abstract: 978,117. Oil and/or gas burners. BLOOM ENGINEERING CO. Inc. Sept. 6, 1962 [April 16, 1962], No. 34151/62. Headings F4B and F4T. A burner 11 mounted in a furnace wall 34 comprises a tubular air duct 28 fitted at its inner end with a refractory baffle 45 having a central opening 48 for a fuel tube 39 and a plurality of spaced inclined air openings 51 discharging hot or cold combustion air into the furnace. The openings 51 are arranged in a circle with their axes inclined at about 25 degrees to the burner axis 32, the inlet ends 53 being radiused to reduce turbulence, and the outlet ends 54 intersect the outer periphery of a central dished portion 50 on the front face 49 of the baffle 45. The openings 51 may be inclined radially outwardly from inlet to outlet end and may also be bent. The baffle 45 is sealed in the air duct 28 by an annular layer of refractory cement 46 and may be provided with an opening 56 for a pilot lighter 57. Gas is supplied to a fitting 41 of the fuel tube 39 through a conduit 42 which may be tangential to the fitting 41 to produce whirling of the gas. The fitting 41 has a plate 43 which may be removed to enable an emulsion type mixing and atomizing nozzle to be fitted (Fig. 6, not shown) which supplies a mixture of fuel oil and steam or compressed air to an axially disposed tube having a discharge orifice at the inner end of the baffle 45. With this arrangement the burner may be operated on fuel oil and/or with gas of relatively high calorific value, e.g. natural or coke oven gas. In another construction, Fig. 8 (not shown), fuel gas of low calorific value may be used in which. case the air openings in the baffle are inclined at 15 degrees, and the fuel tube 39 has an internal diameter greater than one half that of the tubular air duct 28 and is cooled by circulating coolant through a hollow cylindrical shield surrounding its inner end. In Fig. 1, the burner 11 is shown mounted in the upper part of a rectangular one-way top-fired soaking pit furnace 10. The furnace 10 comprises a flue opening 18 leading to a flue 19, a removable cover 17 and thermocouples 21, 23.
Patent GB-1462296-A (GB)
Title: Spark wheels method of manufacturing spark wheels and dies for use therein
IPC: B24B39/00
Filed: 1974-08-02
Abstract: 1462296 Making spark wheels; rolling S P CHERNOCK 2 Aug 1974 [7 Jan 1974] 34203/74 Headings B3A and B3M [Also in Division F4] A spark wheel 20 (Fig. 1) for a cigarette lighter is initially provided on its surface with a number of grooves at an acute angle to the sides of the wheel, and then with composite raised cutting teeth which extend non-uniformly across the lands defined by the grooves. The teeth are formed by rolling dies 36 and 38 (Fig. 5) one or both of which are reciprocable, or between cylindrical dies. The teeth 46 of die 38 initially form teeth 26 on the wheel blank, the teeth having burrs 28 extending from their tips; the teeth 26 are then further deformed to provide composite teeth by the teeth of die 36. The teeth 46 on the dies are skewed, and each has a forming surface 50 and a sloping surface 52, with (optionally) a groove at the lower intersection of the surfaces. The surface 50 is inclined at between 0 and 12 degrees to a perpendicular to the die surface. The orientation of the teeth formed by the two dies differ. The dies may each have between 20 and 60 burr-forming teeth per inch. The formation of the grooves may be effected by a rolling die having suitable projections on its surface, by a screw machine, or by composite dies having an initial grooving section and a final tooth-forming section. The initial cylindrical blanks may be produced in stamping or heading presses or screw machines, and are hardened following the tooth formation.
Patent GB-902707-A (GB)
Title: Improvements in or relating to internal combustion engines and pistons therefor
Inventor: MANSFIELD WILFRED PERCIVAL
IPC: F02D15/04
Filed: 1959-10-09
Abstract: 902,707. Pistons. BRITISH INTERNAL COMBUSTION ENGINE RESEARCH ASSOCIATION. Oct. 5, 1960 [Oct. 9, 1959], No. 34342/59. Class 122 (1). In an internal-combustion engine piston at least part of the crown is axially movable relative to the gudgeon pin to vary the cylinder clearance volume and the movement in the direction to decrease the clearance volume is caused by storing energy produced by fluid pressure when the piston is around top dead-centre and using the stored energy during the lower part of the piston stroke to effect the movement. As shown in Fig. 1, a supplementary piston 1 is slidable in a bore in the main piston body and forms therewith a chamber 10 filled with oil supplied through the connecting-rod and non-return valves 4, 9. During operation, when the piston is around top dead-centre the high-pressure occurring in the space 3 due to the inertia of the oil in the connecting rod opens valve 4 and oil entering space 5 moves accumulator piston 6 against spring 7 towards stop 8. During the lower part of the piston stroke, valve 4 closes since the inertia of the oil in the rod then acts downwardly and, as the gas pressure on piston 1 decreases, the piston 6 moves to the right and oil is discharged via valve 9 into the chamber 10 to move piston 1 into its upper limit position for the cycle. Spring-loaded discharge valves allow oil to escape from chamber 10 to the engine sump when the cylinder pressure exceeds a predetermined maximum. The piston 1 may be of ceramic and its upward movement is limited by a circlip 12. In a modification, Figs. 3 and 4 (not shown), the whole of the crown and skirt is movable relative to the gudgeon-pin which is mounted on an inner portion slidable in the crown and skirt and forming an oil chamber therewith.
Patent GB-521843-A (GB)
Title: Slide, caster or the like for furniture
IPC: A47B91/04
Filed: 1938-11-25
Abstract: 521,843. Castors. BASSICK, CO. Nov. 25, 1938, No. 34378. Convention date, Nov. 26, 1937. [Class 52 (i)] [Also in Group VII] A slide 10, Fig. 4, or castor is attached to a hollow furniture leg 24 by means of a resilient block 20 which is passed through the apertured plate 25 closing the end of the leg and then expanded laterally by axial pressure. The block and the aperture are non-circular and the compression means consists of a screw 18 firmly attached to the slide so as to be turned thereby and a nut 23 in frictional engagement with the top of the block. A plate 19 between the slide and the end of the leg and a non- circular plate 22 in the aperture of the' plate 25 provide metal bearing surfaces to allow easy turning movement of the slide. In the arrangement shown, the slide consists of a body of rubber &c. with a metal shoe 13 sprung over the bottom. A modification is described adapted for fixing the slide to the curved surface of a horizontally disposed cylindrical tubular leg.
Patent GB-211289-A (GB)
Title: Improvements in or in connection with trawling and like fishing gear
IPC: A01K75/02
Filed: 1922-12-18
Abstract: 211,289. Shuttleworth, W. E., and Hollingsworth, J. Dec. 18, 1922. Electric - lamp lanterns. - A lamp casing E, which may be of the form described in Specification 167,001, contains two electric lamps and is supported by links from two eyes c on a rope C to which are also attached two pipes J, secured to a sleeve H clamped on the cable G, which serves as a hauling cable and includes the electric conductors.
Patent GB-855306-A (GB)
Title: Improvements in or relating to seals for ducts
Inventor: LOWE WALTER MAX
IPC: F16L5/02
Filed: 1957-11-05
Abstract: 855,306. Joint-making packing. THERMOTECHNICAL DEVELOPMENT Ltd. Oct. 21, 1958 [Nov. 5, 1957], No. 34484/57. Class 122 (3.) [Also in Group XXVIII] The space between a duct 1 and a surrounding wall 2 is sealed by a metal annular diaphragm formed by sideways over-lapping leaf-springs fixed at one margin to the duct or wall, the other margin slidably contacting under spring pressure a seating face. In the embodiment shown in Fig. 1, segmental leaf-springs 3 in mutual overlapping relationship around the duct are secured to a support 4 on the duct and overlap and are spring-pressed against an abutment 5 on the wall. Additional spring-pressure is provided by a leaf-spring 6 fixed to duct and bearing on the springs 3. In a modification for a vertical duct, Fig. 2 (not shown), the springs 3 are fixed to the wall and overlap an abutment on the duct, pressure being applied to the springs intermediate the duct and the wall by a pivotallymounted weight. In Fig. 3, laminated springs 15 and 16 with layers of progressively less width are fixed at one end to supports 13 and 14 on the duct and wall respectively and arranged in overlapping contact on the opposed faces of the widest laminations. The springs are formed by mutually overlapping trapezoidal sections, as shown in Fig. 4.
Patent GB-882225-A (GB)
Title: Improvements in or relating to the manufacture of resin coated articles
Inventor: REISSNER EDGAR WILHELM
IPC: B29C43/00
Filed: 1956-11-13
Abstract: <PICT:0882225/III/1> Articles are coated with a thermosetting synthetic resin by warming metal moulds or press plates, used for compressing the article to be coated, to a temperature at which a powder of the resin will stick to them, coating the warmed moulds or press plates with a powder of the resin, and transferring the coating from the moulds or press plates to the article by the applicataion of heat and pressure, while it is held in the mould or press plates. The article may be of plywood, chipboard or veneer, or may be moulded from wood chips or wood dust.  The synthetic resin may be urea-melamine- or phenol-formaldehyde.  A release agent such as stearic acid, oleic acid or a silicone, or an extender or filler, may be incorporated into the powdered synthetic resin, which may be applied to the mould or plate by dipping the latter into a bath of powder, or by means of compressed air, or by filling the cavity of a mould with powder and then inverting so that the surplus falls away, or by sprinkling from a sieve.  As shown, the dies 10 and 16 are coated with synthetic resin by one of the above methods, the space between them is charged with wood dust, and moulding temperatures and pressures applied to form an open bowl.  Alternatively, a previously-moulded article may be returned to a mould having a resinous coating applied to its internal surface by the method described above.
Patent GB-766147-A (GB)
Title: Multiple-spindle apparatus, for drilling, counter-sinking, reaming or tapping several holes of a holed area
IPC: B23B39/16
Filed: 1954-11-30
Abstract: 766,147. Drilling-machines. WITZIG, K. E., and FRANK, R. Nov. 30, 1954 [Dec. 2, 1952], No. 34679/54. Class 83 (3). A multi-spindle drilling &c. machine comprises a drill head 15 moved transversely relatively to a control-piece 8 which determines which spindles shall be operative during each feed - movement of the head. The piece 8 carries stops 10 arranged in the pattern of holes to be produced on the work 12, so that as the head-slide 15 carrying a single row of drills 14 is moved transversely, different one of the drills are brought beneath successive rows of stops. The slide 2 carrying the piece 8 is fed by a cam 6. Instead of stops, the piece 8 may have recesses so that certain drills are not actuated. The piece 8 may also be between the spindles and work to allow some spindles only to pass through recesses therein. In a horizontal machine, Fig. 3, the head 15 is moved automatically by a motor 3 and stopped in each position by precision braking-means. The spindles may be driven through universal-shafts to allow adjustment on the head.
Patent GB-628250-A (GB)
Title: Production of melamine
Filed: 1945-12-21
Abstract: Melamine is separated from the product obtained by the pyrolysis of urea by subjecting the product to the action of at least two parts of water per part of melamine by weight under conditions of elevated temperature and pressure and subsequently removing the aqueous solution from the region of elevated pressure for separation of the melamine.  Preferred features of the invention include the addition of the water to the pyrolysate while it is in a molten condition, the removal of insoluble impurities by filtration before reducing the pressure, and the use instead of pure water as the aqueous additive liquor, of a mother liquor obtained in a melamine crystallization process.  The filtration may be carried out at either the full original pressure or at a somewhat reduced but still superatmospheric pressure.  The initial temperature and pressure range may be from 275-550 DEG  C. and 100-1000 atmospheres.  In examples: (1) molten urea is passed through a silver tube at 400 atmospheres at 400 DEG C. and the resultant fluid subjected to a stream of water in the proportion of 4 parts by weight per part of urea charged; (2) a mixture of urea and ammonia is passed through a silver lined tube at 400 DEG  C. under a pressure of 400 atmospheres with a constant time of 10 minutes.  The product is quenched by water in amount of 20 parts of water per part of urea charged.  The resulting aqueous solution is evaporated and the melamine crystallized; (3) the aqueous mother liquor obtained in the crystallization of malamine in example (2) is preheated to 150 DEG  C. under 400 atmospheres and used as the aqueous reactant.  Specifications 583,504 and 628,255 are referred to.  The Specification as open to inspection under Sect. 91 refers to the separation of melamine from any mixture containing melamine by subjecting the mixture to the action of water as indicated above. This subject-matter does not appear in the Specification as accepted.
Patent GB-961508-A (GB)
Title: Improvements in or relating to fluid-flow control valves
IPC: F16K3/06
Filed: 1962-09-12
Abstract: 961,508. Valves. A. M. MARSHALL. May 13, 1963 [Sept. 12, 1962], No. 34767/62. Heading F2V. A valve comprises a housing formed by detachable parts 1, 7, the part 1 having a bore 2 providing a flow passage. A valve plate 10, having an aperture 11, controls flow through the passage, the plate being actuated by a worm 4 which engages teeth 18 on the periphery of the plate. The plate rotates on a pivot pin 9 which is mounted in the part 7 of the housing whereby the pin and part 7 may be removed for inspection of the valve seats which are preferably O- or D-shaped sealing rings carried by seating rings. In a modification sealing strips are secured to the valve plate around its aperture and the section of the plate which closes the passage.
Patent GB-403804-A (GB)
Title: A new or improved mechanical toy
IPC: A63H29/12
Filed: 1932-12-08
Abstract: 403,804. Toys. DENTITH, R. A., Cheriton, Ferrers Road, Oswestry, Shropshire. Dec. 8, 1932, No. 34800. [Class 132 (iii).] A toy preferably of wood comprises a tray base 1 to which are secured uprights 3, 4, connected by a horizontal member 5 constituting the bottom of a hopper 6 mounted on the member 5. The member 5 is provided with an aperture 13 closed by a removable plug 14 and positioned in front of the axle of a vaned rotor 7 rotatable in the uprights 3 and 4. The axle of the rotor may be mounted in inclined slots 17 in the uprights 3, 4 and retained therein by removable wedges 18. The axle extends through the upright 4 and terminates in a cranked handle 8 on which are pivoted the arms 12 pivoted to the body portion 10 of a figure pivoted on legs 11 fixedly secured to a pedestal 9 provided on a side 2 of the tray base 1. In use granular substance 15 in the hopper 6 falls on the vanes of the rotor 7 to rotate the cranked handle 8 and impart through the arms 12 a life-like movementto the figure. A shoot 16 is provided to direct granular substance falling from the vanes into the forward part of the tray. A miniature scoop or shovel is provided for returning the granular substance from the tray into the hopper when required.